Waitress has request processing race condition in HTTP pipelining with invalid first request
概要
Waitress has request processing race condition in HTTP pipelining with invalid first request
原文の説明
取得元が公開している説明をそのまま載せています (多くは英語)。
Waitress is a Web Server Gateway Interface server for Python 2 and 3. A remote client may send a request that is exactly recv_bytes (defaults to 8192) long, followed by a secondary request using HTTP pipelining. When request lookahead is disabled (default) we won't read any more requests, and when the first request fails due to a parsing error, we simply close the connection. However when request lookahead is enabled, it is possible to process and receive the first request, start sending the error message back to the client while we read the next request and queue it. This will allow the secondary request to be serviced by the worker thread while the connection should be closed. Waitress 3.0.1 fixes the race condition. As a workaround, disable channel_request_lookahead, this is set to 0 by default disabling this feature.
出典: OSV.dev (Open Source Vulnerabilities) NVD GitHub Advisory OSV
ディストリビューション別の修正状況
各ディストリビューションが公開している、この CVE の修正パッケージ
- Debian DEBIAN-CVE-2024-49768 waitress 修正版: 2.1.2-2+deb12u1
参照URL
- advisory github.com
- advisory github.com
- advisory nvd.nist.gov
- patch github.com